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Tue, 15 Jun 2021 20:29:26 +0800 Message-ID: <1623760166.24285.1.camel@mhfsdcap03> Subject: Re: [PATCH v3 3/6] iommu: Improve iommu_iotlb_gather helpers From: Yong Wu To: Nadav Amit CC: Joerg Roedel , Robin Murphy , , , Jiajun Cao , Will Deacon Date: Tue, 15 Jun 2021 20:29:26 +0800 In-Reply-To: <20210607182541.119756-4-namit@vmware.com> References: <20210607182541.119756-1-namit@vmware.com> <20210607182541.119756-4-namit@vmware.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-Version: 1.0 X-TM-SNTS-SMTP: 619EC6FAECE4DB4BFD5D7B0E99DD46A5676E4A97FF55DE65E1407293A0E41BBB2000:8 X-MTK: N Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org T24gTW9uLCAyMDIxLTA2LTA3IGF0IDExOjI1IC0wNzAwLCBOYWRhdiBBbWl0IHdyb3RlOg0KPiBG cm9tOiBSb2JpbiBNdXJwaHkgPHJvYmluLm11cnBoeUBhcm0uY29tPg0KPiANCj4gVGhlIE1lZGlh dGVrIGRyaXZlciBpcyBub3QgdGhlIG9ubHkgb25lIHdoaWNoIG1pZ2h0IHdhbnQgYSBiYXNpYw0K PiBhZGRyZXNzLWJhc2VkIGdhdGhlcmluZyBiZWhhdmlvdXIsIHNvIGFsdGhvdWdoIGl0J3MgYXJn dWFibHkgc2ltcGxlDQo+IGVub3VnaCB0byBvcGVuLWNvZGUsIGxldCdzIGZhY3RvciBpdCBvdXQg Zm9yIHRoZSBzYWtlIG9mIGNsZWFubGluZXNzLg0KPiBMZXQncyBhbHNvIHRha2UgdGhpcyBvcHBv cnR1bml0eSB0byBkb2N1bWVudCB0aGUgaW50ZW50IG9mIHRoZXNlDQo+IGhlbHBlcnMgZm9yIGNs YXJpdHkuDQo+IA0KPiBDYzogSm9lcmcgUm9lZGVsIDxqb3JvQDhieXRlcy5vcmc+DQo+IENjOiBX aWxsIERlYWNvbiA8d2lsbEBrZXJuZWwub3JnPg0KPiBDYzogSmlhanVuIENhbyA8Y2FvamlhanVu QHZtd2FyZS5jb20+DQo+IENjOiBSb2JpbiBNdXJwaHkgPHJvYmluLm11cnBoeUBhcm0uY29tPg0K PiBDYzogTHUgQmFvbHUgPGJhb2x1Lmx1QGxpbnV4LmludGVsLmNvbT4NCj4gQ2M6IGlvbW11QGxp c3RzLmxpbnV4LWZvdW5kYXRpb24ub3JnDQo+IENjOiBsaW51eC1rZXJuZWxAdmdlci5rZXJuZWwu b3JnDQo+IFNpZ25lZC1vZmYtYnk6IFJvYmluIE11cnBoeSA8cm9iaW4ubXVycGh5QGFybS5jb20+ DQo+IA0KPiAtLS0NCj4gDQo+IENoYW5nZXMgZnJvbSBSb2JpbidzIHZlcnNpb246DQo+ICogQWRk ZWQgaW9tbXVfaW90bGJfZ2F0aGVyX2FkZF9yYW5nZSgpIHN0dWIgIUNPTkZJR19JT01NVV9BUEkN Cj4gKiBVc2UgaW9tbXVfaW90bGJfZ2F0aGVyX2FkZF9yYW5nZSgpIGluIGlvbW11X2lvdGxiX2dh dGhlcl9hZGRfcGFnZSgpDQo+IC0tLQ0KPiAgZHJpdmVycy9pb21tdS9tdGtfaW9tbXUuYyB8ICA1 ICstLS0tDQo+ICBpbmNsdWRlL2xpbnV4L2lvbW11LmggICAgIHwgNDMgKysrKysrKysrKysrKysr KysrKysrKysrKysrKysrKysrKy0tLS0tDQo+ICAyIGZpbGVzIGNoYW5nZWQsIDM5IGluc2VydGlv bnMoKyksIDkgZGVsZXRpb25zKC0pDQo+IA0KPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9pb21tdS9t dGtfaW9tbXUuYyBiL2RyaXZlcnMvaW9tbXUvbXRrX2lvbW11LmMNCj4gaW5kZXggZTA2YjhhMGUy YjU2Li4wYWY0YTkxYWM3ZGEgMTAwNjQ0DQo+IC0tLSBhL2RyaXZlcnMvaW9tbXUvbXRrX2lvbW11 LmMNCj4gKysrIGIvZHJpdmVycy9pb21tdS9tdGtfaW9tbXUuYw0KPiBAQCAtNTIzLDEwICs1MjMs NyBAQCBzdGF0aWMgc2l6ZV90IG10a19pb21tdV91bm1hcChzdHJ1Y3QgaW9tbXVfZG9tYWluICpk b21haW4sDQo+ICAJc3RydWN0IG10a19pb21tdV9kb21haW4gKmRvbSA9IHRvX210a19kb21haW4o ZG9tYWluKTsNCj4gIAl1bnNpZ25lZCBsb25nIGVuZCA9IGlvdmEgKyBzaXplIC0gMTsNCg0KUGxl YXNlIGFsc28gaGVscCBkZWxldGUgdGhpcyAiZW5kIi4NCg0KPiAgDQo+IC0JaWYgKGdhdGhlci0+ c3RhcnQgPiBpb3ZhKQ0KPiAtCQlnYXRoZXItPnN0YXJ0ID0gaW92YTsNCj4gLQlpZiAoZ2F0aGVy LT5lbmQgPCBlbmQpDQo+IC0JCWdhdGhlci0+ZW5kID0gZW5kOw0KPiArCWlvbW11X2lvdGxiX2dh dGhlcl9hZGRfcmFuZ2UoZ2F0aGVyLCBpb3ZhLCBzaXplKTsNCj4gIAlyZXR1cm4gZG9tLT5pb3At PnVubWFwKGRvbS0+aW9wLCBpb3ZhLCBzaXplLCBnYXRoZXIpOw0KPiAgfQ0KDQpbc25pcF0gDQoN Cg0K